Curds are a dairy product obtained by coaguwatingmiwk in a process cawwed curdwing. The coaguwation can be caused by adding enzymes rennet or any edibwe acidic substance such as wemon juice or vinegar, and den awwowing it to coaguwate. Awso, adding wactic acid bacteria in to miwk and subseqwent acid production wiww awso resuwt in gew formation of miwk. The increased acidity causes de miwk proteins (casein) to tangwe into sowid masses, or curds. Miwk dat has been weft to sour (raw miwk awone or pasteurized miwk wif added wactic acid bacteria) wiww awso naturawwy produce curds, and sour miwk cheeses are produced dis way. Producing cheese curds is one of de first steps in cheesemaking; de curds are pressed and drained to varying amounts for different stywes of cheese and different secondary agents (mowds for bwue cheeses, etc.) are introduced before de desired aging finishes de cheese. The remaining wiqwid, which contains onwy whey proteins, is de whey. In cow's miwk, 80 percent of de proteins are caseins.

Curds are awso typicaw of some Germanic-descent regions such as historic Waterwoo County in Ontario.[1] In some parts of de Midwestern U.S., especiawwy in Wisconsin, dey are breaded and fried, or are eaten straight.

In Turkey, curds are cawwed keş and are very commonwy used as an aphrodisiac and for breakfast served on fried bread and are awso eaten wif macaroni in de provinces of Bowu and Zonguwdak.

Awbaniangjiza is made by boiwing whey for about 15 minutes and adding vinegar or wemon, uh-hah-hah-hah. The derivative is drained 3 to 4 times wif a napkin or piece of cwof and sawted to taste. Gjiza can be served immediatewy or refrigerated for a coupwe of days.

Lactobaciwwus is a genus of bacteria which can convert sugars into wactic acid by means of fermentation. Miwk contains a sugar cawwed wactose, a disaccharide (compound sugar) made by de gwycosidic bonding between gwucose and gawactose (monosaccharides). When pasteurized miwk is heated to a temperature of 30-40 °C, or even at room temperature or refrigerator temperature, and a smaww amount of owd curd or whey added to it, de wactobaciwwus in dat curd or whey sampwe starts to grow. These convert de wactose into wactic acid, which imparts de sour taste to curd. Raw miwk naturawwy contains wactobaciwwus